When Moshe approaches Pharaoh, he must feel a sea of emotions. He returns to the house that banished him, to those who oppressed his people for hundreds of years. It would be understandable if Moshe dreamt of revenge–if not for himself, then for his enslaved people.
But Moshe brings neither his personal interests nor his righteous anger to his meeting with Pharaoh. His message is simple: Let my people go.
Every Jew has been in a sea of emotions these last few months, among them anger, righteous anger. But we learn from the example of Moshe that as long as our people are held captive, we cannot waste time on thoughts of revenge. We must repeat our basic message, over and over, until the heavens and earth themselves must answer:
Bring them home. Now.